Followup to r1231166.
Followup to r1231166.

* subversion/mod_dav_svn/util.c
  (dav_svn__new_error): Don't assume errno is valid.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion